One syllable: Mould.
mohld
/moʊld/
Mould is pronounced mohld (/moʊld/). It has one syllable (Mould), with the stress on "Mould". Mould (US: mold) is a noun for a hollow form used to shape something or a growth of fungus. It also denotes the act of shaping or forming material. In British English it is spelled Mould; in American English, Mold. The term encompasses manufacturing, gardening, biology, and pathology contexts, where the form or growth receives its characteristic shape from the surrounding medium.
nounMould (US: mold) is a noun for a hollow form used to shape something or a growth of fungus. It also denotes the act of shaping or forming material. In British English it is spelled Mould; in American English, Mold. The term encompasses manufacturing, gardening, biology, and pathology contexts, where the form or growth receives its characteristic shape from the surrounding medium.
How to Pronounce Mould
"The carpenter poured plaster into the mould to create a decorative ceiling ornament."
"Mildew and mould tend to grow in damp, poorly ventilated areas."
"The pottery wheel spins to form clay around a plaster mould."
US: /moʊld/ (moh-ld) with a long O, final /ld/ cluster. UK/AU: /məʊld/ (mohld) with a long /oʊ/ in non-rhotic contexts, but vowels may be slightly reduced in rapid speech. Stress is on the single syllable; lips relax into a rounded position for /oʊ/ and the tongue closes to end with an /l/ and /d/ release. In careful speech you’ll hear a crisp /ld/ cluster; in fast speech it may shift toward a syllabic or lightly released /l/.
Common errors include confusing /ou/ with /oʊ/ in certain dialects, leading to a shortened vowel in non-rhotic UK speech. Another mistake is voicing the final /ld/ too abruptly, making it sound like /l/ only. A third pitfall is attempting a hard /l/ than a light, velarized /l/ before /d/. Correct by pressing your tongue to the alveolar ridge for the /l/ while keeping lips rounded for /oʊ/ and finishing with a precise /d/ release.
US tends to use /moʊld/ with no rhoticity concern in non-rhotic regions but rhotic speakers still pronounce /r/ in felt contexts; overall the vowel is a pure long /oʊ/. UK/AU use /məʊld/ with a stronger £oʊ sound and less rhoticity in casual speech; Australians may have a more centralized vowel and a slightly faster /ld/ cluster. Differences revolve around vowel quality (oʊ vs əʊ), rhotic influence, and the speed of the final consonant cluster.
The difficulty lies in the /oʊ/ diphthong and the /ld/ consonant cluster. Many learners mispronounce the rounded mid-back vowel or reduce it to a simple /o/; the transition into /l/ and the precise /d/ release require careful tongue placement: tip to alveolar ridge for /d/, blade for /l/. In rapid speech, the /l/ can become syllabic or the /d/ can be unreleased, altering clarity. Practicing slow, precise articulation helps stabilize both vowel quality and the final cluster.
In standard British and American pronunciation, the final e is not pronounced as a separate vowel. It often signals the long vowel /oʊ/ in spellings of British English, but the sound is realized as a single diphthong /əʊ/ (UK) or /oʊ/ (US). The final letter is silent in pronunciation, and the /ld/ cluster is the final audible segment. Focus on the diphthong and the crisp /ld/ release.
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The word mould traces to Old French moule, from Latin forma, meaning a form or impression. In Middle English, moule referred to a mold or form used to shape an object. The sense broadened to include the material used for shaping (plaster, clay) and, later, the hollow cavity itself. The sense of a fungus growth is from 17th century biological usage, where organisms assuming a fuzzy, powdery outward form resemble a mould or mold. The spelling variation mold (US) emerged from simplification in American usage. Over centuries, the term migrated across crafts, manufacturing, and biology, maintaining core meaning related to form, impression, and growth that takes shape within a supporting medium. First known use appears in 14th–15th century texts in Europe, with “moule” or “moule” forms noted in craft records, and by the 16th–17th centuries the formal sense began to appear in technical manuals and natural history writings. In modern usage, mould/mold coexist as British and American spellings, with scientific literature commonly favoring mold for the fungus sense and mold for the shaping sense in American contexts.
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💡 These words have similar meanings to "Mould" and can often be used interchangeably.
🔄 These words have opposite meanings to "Mould" and show contrast in usage.
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Words that rhyme with "Mould"
-old sounds
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